August 10, 1907

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Features

Cause and Cure of Split Rail Heads

Colorado Dam is Permanent

Is Rusting Electrolytic?

At Last a 25-Knot Liner

Science Notes

Ramsay's Discovery of the Degradation of Copper to Lithium

The Story of an Ancient Mine

By Herbert W. Horwill

The 25-Knot Turbine Liner “Lusitania”

The International Kite Ascensions

By S. P. Fergusson

The Erection of the Blackwell's Island Bridge

A Revolution in Postal Car Construction

By Louis C. Kane

The Greatest of Mastodons

By Walter L. Beasley

An Electric Dining Table

Departments

Departments

Correspondence

Recently Patented Inventions

Notes and Queries

Index of Inventions

New Books, Etc.

Patents

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